257 static bool shouldRematerialize(const MachineInstr &Def,  in shouldRematerialize()  argument
259   return Def.isAsCheapAsAMove() && TII->isTriviallyReMaterializable(Def);  in shouldRematerialize()
269   if (MachineInstr *Def = MRI.getUniqueVRegDef(Reg))  in getVRegDef()  local
270     return Def;  in getVRegDef()
283 static bool hasOneUse(unsigned Reg, MachineInstr *Def, MachineRegisterInfo &MRI,  in hasOneUse()  argument
292       LI.getVNInfoAt(LIS.getInstructionIndex(*Def).getRegSlot());  in hasOneUse()
312 static bool isSafeToMove(const MachineOperand *Def, const MachineOperand *Use,  in isSafeToMove()  argument
316   const MachineInstr *DefI = Def->getParent();  in isSafeToMove()
332   if (Def != DefI->defs().begin())  in isSafeToMove()
517                                       MachineInstr *Def, MachineBasicBlock &MBB,  in moveForSingleUse()  argument
521   LLVM_DEBUG(dbgs() << "Move for single use: "; Def->dump());  in moveForSingleUse()
523   WebAssemblyDebugValueManager DefDIs(Def);  in moveForSingleUse()
524   MBB.splice(Insert, &MBB, Def);  in moveForSingleUse()
526   LIS.handleMove(*Def);  in moveForSingleUse()
536     Def->getOperand(0).setReg(NewReg);  in moveForSingleUse()
544     LI.removeSegment(LIS.getInstructionIndex(*Def).getRegSlot(),  in moveForSingleUse()
552     LLVM_DEBUG(dbgs() << " - Replaced register: "; Def->dump());  in moveForSingleUse()
555   imposeStackOrdering(Def);  in moveForSingleUse()
556   return Def;  in moveForSingleUse()
562     unsigned Reg, MachineOperand &Op, MachineInstr &Def, MachineBasicBlock &MBB,  in rematerializeCheapDef()  argument
566   LLVM_DEBUG(dbgs() << "Rematerializing cheap def: "; Def.dump());  in rematerializeCheapDef()
569   WebAssemblyDebugValueManager DefDIs(&Def);  in rematerializeCheapDef()
572   TII->reMaterialize(MBB, Insert, NewReg, 0, Def, *TRI);  in rematerializeCheapDef()
587     IsDead = !LI.liveAt(LIS.getInstructionIndex(Def).getDeadSlot());  in rematerializeCheapDef()
594     SlotIndex Idx = LIS.getInstructionIndex(Def).getRegSlot();  in rematerializeCheapDef()
597     LIS.RemoveMachineInstrFromMaps(Def);  in rematerializeCheapDef()
598     Def.eraseFromParent();  in rematerializeCheapDef()
630     unsigned Reg, MachineOperand &Op, MachineInstr *Def, MachineBasicBlock &MBB,  in moveAndTeeForMultiUse()  argument
633   LLVM_DEBUG(dbgs() << "Move and tee for multi-use:"; Def->dump());  in moveAndTeeForMultiUse()
635   WebAssemblyDebugValueManager DefDIs(Def);  in moveAndTeeForMultiUse()
638   MBB.splice(Insert, &MBB, Def);  in moveAndTeeForMultiUse()
639   LIS.handleMove(*Def);  in moveAndTeeForMultiUse()
645   MachineOperand &DefMO = Def->getOperand(0);  in moveAndTeeForMultiUse()
653   SlotIndex DefIdx = LIS.getInstructionIndex(*Def).getRegSlot();  in moveAndTeeForMultiUse()
670   imposeStackOrdering(Def);  in moveAndTeeForMultiUse()
676   LLVM_DEBUG(dbgs() << " - Replaced register: "; Def->dump());  in moveAndTeeForMultiUse()
678   return Def;  in moveAndTeeForMultiUse()
863         MachineOperand *Def = DefI->findRegisterDefOperand(Reg);  in runOnMachineFunction()  local
864         assert(Def != nullptr);  in runOnMachineFunction()
873         bool CanMove = SameBlock && isSafeToMove(Def, &Use, Insert, MFI, MRI) &&  in runOnMachineFunction()